Two-phase anaerobic fermentation reaction device

Abstract

The invention relates to the technical field of biomass, and discloses a two-phase anaerobic fermentation reaction device. The problems that at present, no corresponding two-phase reaction device is provided for acid production and methane production, and reaction mechanisms of different stages are inconvenient to research are solved. The device comprises an acidification reactor, a liquid storage tank and a methane production reactor, and the exterior of the acidification reactor is connected with a double-layer jacket. According to the device, solid materials are subjected to acid production in a dry-process leachate reflux mode, the device is suitable for researching dry-process acid production and wet-process methane production reaction processes of various organic solid materials in a laboratory, the acid production process and the methane production process of the materials can be separated, and the reaction mechanisms of different stages can be researched; the acid production leachate reflux quantity and frequency can be conveniently adjusted through a peristaltic pump; the pH value, ORP value and the like of an acid production leachate can be conveniently tested and can also be adjusted; the gas production quantity in the methane production process can be tested on line in real time; and the operation is simple, the use is convenient, the reaction device is modular in design, and parts are easy to replace.

Description

technical field [0001] The invention belongs to the technical field of biomass, in particular to a two-phase anaerobic fermentation reaction device. Background technique [0002] Organic materials such as agricultural straw, kitchen waste, poultry and livestock manure, and organic wastewater are both pollutants and rich in organic matter. Using microbial anaerobic fermentation to degrade organic pollutants and obtain methane can not only remove pollution, but also generate energy. , It can be said to kill two birds with one stone. The production of methane by microbial anaerobic fermentation is a multi-step reaction process. First, the microbial acid-producing bacteria degrade the large molecules of the material into small molecules, then decompose them into various acids, and then degrade them into acetic acid. At present, the CSTR fully mixed anaerobic fermentation reactor is widely used in industry, and the process of microbial degradation of organic matter to produce aci...

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Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a two-phase anaerobic fermentation reaction device, which effectively solves the problem that there is no corresponding two-phase reaction device for acid production and methane production, and it is inconvenient to study the reaction mechanism of different stages The problem

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